This Friday i had a drive over från Malmö to Copenhagen to visit Sorensen Performance. Had the opportunity of seeing several cars at the workshop that where in the modding process or fully ready to be played. As a kid on Christmas you get eager and start thinking of stage 4 and other fun modifications that you can do to your car. Where does it end...
Marc spend about 2 hours helping me trouble shooting my car with vag-com. Very thankful for that Marc!!!
After the 60 minute drive over timing pull and lambda was suddenly fine !! But after standing still 10 minutes and then going back to logging the numbers started getting bad again, WTF!
Following outcome was done.
* Coolant temp sensor was showing about 73-83 C even at spirited driving. Should stay at steady 90 C .
* MAF values on idle where on 2-3 g/s, should be over 4 g/s
* VCDS block 36, bank 1 sensor 2 was all over the place, can not remember the exact values. Steady for some seconds and then it would go low.
* Intercooler temps where high
* My intake is only ITG parts up to the maf housing from the turbo, remaining parts are my own build. This may cause change in readings.
See link for picture of intake before changing to ITG maf housing and turbo silicone hose.
http://images15.fotki.com/v588/photos/2/224002/10626556/DSC_0333-vi.jpg
* VCDS block 134 temperature was showing -60 C, should be + ...
Yes, some of my above conclusions may be faulty, if so correct me or let me know what is correct!
As we detected this behavior and possible issues i did the decision of not proceeding with the re-flash to OEM sw. Surely it could remove my issues but at least now i know that i have some issues to attend to. When that has been done and i still find that things are not right i might say that my car is REVO allergic and proceeding another path. Marc confirmed that i had the latest Revo Stage 2+ sw so nothing to add from a reflash of it.
Actions to attend to.
* Update Intake to complete ITG set up, fix the idll maf readings
* Get a better intercooler
* Check if engine coolent temp of 70 - 80 is normal
* Investigate why lambda sensor voltage is changing drastically in idle, change lambda maybe.
* Why is oil temperature sensor showing -60 C, any effect on the engine?
* Isolate the Intake filter from hot engine air and create additional air feed from lower right spoiler side.